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mutter-performance-source/src/backends/native/meta-drm-buffer-import.h
Jonas Ådahl 84bde805fe native: Consolidate DRM buffer management to MetaDrmBuffer types
This commit consolidates DRM buffer management to the MetaDrmBuffer
types, where the base type handles the common functionality (such as
managing the framebuffer id using drmModeAdd*/RMFb()), and the sub types
their corresponding type specific behavior.

This means that drmModeAdd*/RmFB() handling is moved from meta-gpu-kms.c
to meta-drm-buffer.c; dumb buffer allocation/management from
meta-renderer-native.c.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1488>
2021-01-22 16:47:08 +00:00

55 lines
2.1 KiB
C

/*
* Copyright (C) 2018 Canonical Ltd.
* Copyright (C) 2019 Red Hat Inc.
* Copyright (C) 2019 DisplayLink (UK) Ltd.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*
*/
#ifndef META_DRM_BUFFER_IMPORT_H
#define META_DRM_BUFFER_IMPORT_H
#include <gbm.h>
#include "backends/native/meta-drm-buffer.h"
#include "backends/native/meta-drm-buffer-gbm.h"
#include "backends/native/meta-gpu-kms.h"
#define META_TYPE_DRM_BUFFER_IMPORT (meta_drm_buffer_import_get_type ())
G_DECLARE_FINAL_TYPE (MetaDrmBufferImport,
meta_drm_buffer_import,
META, DRM_BUFFER_IMPORT,
MetaDrmBuffer)
/*
* MetaDrmBufferImport is a buffer that refers to the storage of a
* MetaDrmBufferGbm buffer on another MetaGpuKms.
*
* When creating an imported buffer, the given GBM buffer is exported
* as a dma_buf and then imported to the given MetaGpuKms. A reference
* is kept to the GBM buffer so that it won't disappear while the
* imported buffer exists.
*
* The import has a high chance of failing under normal operating
* conditions and needs to be handled with fallbacks to something else.
*/
MetaDrmBufferImport * meta_drm_buffer_import_new (MetaKmsDevice *device,
struct gbm_device *gbm_device,
MetaDrmBufferGbm *buffer_gbm,
GError **error);
#endif /* META_DRM_BUFFER_IMPORT_H */